Lv110版本源码上传

api/demo/ref.py

@@ -0,0 +1,36 @@
+from signe import createSignal, effect, computed
+from signe.types import TSetter, TGetter
+from typing import TypeVar, Generic, overload, Union, Callable, cast
+
+T = TypeVar("T")
+
+class Ref(Generic[T]):
+    def __init__(self, getter: TGetter[T], setter: TSetter[T]) -> None:
+        self.___getter = getter
+        self.___setter = setter
+
+    @property
+    def value(self):
+        return self.___getter()
+
+    @value.setter
+    def value(self, value: T):
+        self.___setter(value)
+
+class ReadonlyRef(Generic[T]):
+    def __init__(self, getter: TGetter[T]) -> None:
+        self.___getter = getter
+
+    @property
+    def value(self):
+        return self.___getter()
+
+def ref(value: T):
+    comp = False if isinstance(value, (list, dict)) else None
+    getter, setter = createSignal(value, comp)
+    return cast(Ref[T], Ref(getter, setter))
+
+
+def ref_computed(fn: Callable[[], T]):
+    getter = computed(fn)
+    return ReadonlyRef(getter)